US 4,689,725 AGranted

Aiming device for automobile head lamp

AssigneeKoito Manufacturing Co., Ltd.

InventorsAkira Saijo, Fusakiyo Matsune, Yuji Fujino, Shinji Watanabe

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Abstract

The present invention relates to an aiming device for adjusting the optical axis of an automobile head lamp, characterized in that it comprises a hollow bearing attached to a movable member which is a lamp unit or a reflection mirror to be moved for adjusting the optical axis, a gear case housing a worm gear and a spur gear engaged with each other, the gear case being attached to a fixed member which is an autobody or a housing for supporting said movable member, an aiming screw whose head is fitted into said hollow bearing and whose screw portion is screwed into a female threaded hole formed in the shaft center of said spur gear, and a device for inhibiting said aiming screw from rotating circumferentially.

Claims10

Dependent claims

An aiming device for a movable member of an automobile, comprising:

a hollow bearing attached to said movable member for adjusting an optical axis thereof,
a gear case attached to a fixed member and having therein a worm gear and spur gear in meshing engagement with each other,
an aiming screw having a head fitted into said hollow bearing and a screw portion screwed into a female threaded hole formed in the shaft center of said spur gear, and
means for inhibiting said aiming screw from rotating circumferentially with respect to said gear case, said means for inhibiting including a stop element on said head of said aiming screw and a complementary engagement element associated with said hollow bearing, which operatively engages said stop element to inhibit rotation of said aiming screw.

1 more element

Dependencies are inferred from the claim text.